USMLE Forum Archives - USMLE Step 3 - Brain tumor
Brain tumor
zkadhem - 07-26-09 05:50
A 62-year-old Caucasian man comes to the office with complaints of a dull, non-throbbing headache, hearing loss on the left side, and persistent tinnitus. His symptoms are getting progressively worse for the last two weeks. He has a history of small cell cancer of the lung, which was treated with a combination of chemotherapy and radiotherapy four months ago. His lung mass has reduced considerably in size after its treatment. A contrast-enhanced magnetic resonance imaging scan shows a 1 x 2 cm circumscribed mass in the left cerebellopontine angle compressing on the eighth cranial nerve. There is another small 0.5 x 1 cm mass in the left frontal lobe cortex with significant edema surrounding the lesion. Which of the following is the most likely cause of this patient’s symptoms?
zkadhem - 07-26-09 05:50
A 62-year-old Caucasian man comes to the office with complaints of a dull, non-throbbing headache, hearing loss on the left side, and persistent tinnitus. His symptoms are getting progressively worse for the last two weeks. He has a history of small cell cancer of the lung, which was treated with a combination of chemotherapy and radiotherapy four months ago. His lung mass has reduced considerably in size after its treatment. A contrast-enhanced magnetic resonance imaging scan shows a 1 x 2 cm circumscribed mass in the left cerebellopontine angle compressing on the eighth cranial nerve. There is another small 0.5 x 1 cm mass in the left frontal lobe cortex with significant edema surrounding the lesion. Which of the following is the most likely cause of this patient’s symptoms?
The correct answer and explanation will be available after you answer.
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